Cleaning device for outer wall of sampling tube

Abstract

The invention relates to the technical field of semiconductor manufacturing, and discloses a sampling tube outer wall cleaning device which comprises an installation assembly, a cleaning assembly and a cleaning assembly. The flow guide assembly comprises a first flow guide part and a second flow guide part, the first flow guide part is connected with the top wall of the mounting assembly, the second flow guide part is connected with the bottom wall of the mounting assembly, the first flow guide part and the second flow guide part are each provided with a pipe body inserting hole, and the pipe body inserting holes communicate with the containing space; the nozzle comprises a connecting end and a spraying end opposite to the connecting end, the nozzle is arranged in the containing space, the connecting end is connected with the side wall of the mounting assembly, the connecting end is communicated with the channel of the mounting assembly, and the spraying end is arranged towards the containing space, so that the flushing fluid is sprayed to the outer wall of the sampling tube. The outer wall of the sampling pipe can be automatically cleaned, and the problem that cleaning liquid splashes in the cleaning process is solved.

Description

Technical Field

[0001] This invention relates to the field of semiconductor manufacturing technology, and in particular to a cleaning device for the outer wall of a sampling tube. Background Technology

[0002] In semiconductor wafer manufacturing, chemicals need to be sampled to test their compliance. Different chemicals require sampling and testing in both chemical supply equipment and chemical formulation production equipment. To ensure the sampling results are not affected, the outer wall of the sampling tube needs to be cleaned manually using a water gun or hose after sampling, which also results in water splashing. Summary of the Invention

[0003] To address at least one technical problem in the prior art, embodiments of the present invention provide a cleaning device for the outer wall of a sampling tube. The technical solution is as follows: A cleaning device for the outer wall of a sampling tube includes: an installation assembly having a receiving space, the receiving space having openings on both the top and bottom walls of the installation assembly, and a channel provided in the side wall of the installation assembly; A flow guiding assembly includes: a first flow guiding member and a second flow guiding member. The first flow guiding member is connected to the top wall of the mounting assembly and covers the opening on the top wall of the mounting assembly. The second flow guiding member is connected to the bottom wall of the mounting assembly and covers the opening on the bottom wall of the mounting assembly. Both the first flow guiding member and the second flow guiding member have tube insertion holes. The tube insertion holes communicate with the receiving space. The tube insertion holes on the first flow guiding member and the tube insertion holes on the second flow guiding member are coaxially arranged so that the sampling tube passes through the tube insertion holes through the first flow guiding member, the second flow guiding member, and the receiving space. The nozzle includes a connecting end and a spraying end disposed opposite to the connecting end, the spraying end communicating with the connecting end, the nozzle being disposed in the receiving space, the connecting end being connected to the side wall of the mounting assembly, the connecting end communicating with the channel of the mounting assembly, and the spraying end being disposed toward the receiving space so that the flushing fluid is sprayed onto the outer wall of the sampling tube. Furthermore, the mounting component includes: two first mounting blocks and two second mounting blocks arranged opposite each other, the first mounting blocks and the second mounting blocks enclosing the receiving space, the first mounting blocks having a first channel, the second mounting blocks having a second channel, the first channel communicating with the second channel to form a channel of the mounting component.

[0004] Furthermore, the mounting component also includes: The third mounting block is disposed between two opposing second mounting blocks. The first mounting block, the second mounting block, and the third mounting block enclose at least two receiving spaces. The third mounting block has a third channel, and the first channel, the second channel, and the third channel form the channel of the mounting component.

[0005] Furthermore, the first mounting block has the following features on its side wall near the receiving space: A first recessed portion is connected to the second mounting block, and the shape of the first recessed portion is adapted to the end face shape of the second mounting block. The second recess is disposed between the two first recesses and is connected to the third mounting block. The shape of the second recess is adapted to the end face shape of the third mounting block. A protrusion is disposed between the first recess and the second recess, and / or between two second recesses, and the protrusion is connected to the nozzle. Further, in a top-to-bottom direction, the protrusion extends radially inward toward the receiving space, and both the sidewall of the second mounting block with the nozzle and the sidewall of the third mounting block with the nozzle extend radially inward toward the receiving space.

[0006] Furthermore, both the first recess and the second recess have: a first flow hole and a first connecting hole, the first connecting hole being symmetrically arranged on the radial outer side of the first flow hole, and the first flow hole communicating with the first channel; The end face of the second mounting block connected to the first mounting block has a second flow hole corresponding to the position of the first flow hole in the first recess, and a second connection hole corresponding to the position of the first connection hole in the first recess. The second mounting block and the first mounting block are positioned and connected through the first connection hole and the second connection hole. The first channel and the second channel are connected through the first flow hole and the second flow hole. The end face of the third mounting block connected to the first mounting block has a third flow hole corresponding to the position of the first flow hole in the second recess, and a third connection hole corresponding to the position of the first connection hole in the second recess. The second mounting block and the third mounting block are positioned and connected through the first connection hole and the third connection hole. The first channel and the third channel are connected through the first flow hole and the third flow hole.

[0007] Furthermore, the first flow hole, the second flow hole, and the third flow hole are all disposed in the groove, and a sealing ring is disposed in the groove.

[0008] Furthermore, the protrusion is provided with a first nozzle mounting hole, the nozzle is disposed in the first nozzle mounting hole, and the first nozzle mounting hole communicates with the first channel; The second mounting block has a second nozzle mounting hole on its side wall near the receiving space. The nozzle is disposed in the second nozzle mounting hole, and the second nozzle mounting hole communicates with the second channel. The second mounting block has a third nozzle mounting hole on its two side walls. The nozzle is disposed in the third nozzle mounting hole and the third nozzle mounting hole is connected to the second channel.

[0009] Furthermore, both the first and second flow guides are variable diameter pipe structures, having a first diameter end and a second diameter end. The diameter of the first diameter end is smaller than the diameter of the second diameter end. The first diameter end forms the pipe insertion hole, and the second diameter end is connected to the mounting assembly.

[0010] Furthermore, the diameter of the second diameter end on the first guide member is the same as the diameter of the opening on the top wall of the mounting assembly, and the diameter of the second diameter end on the second guide member is larger than the diameter of the opening on the bottom wall of the mounting assembly.

[0011] Furthermore, the top wall of the mounting assembly is provided with a liquid inlet hole, which is connected to the channel of the mounting assembly. An external threaded tube is provided at the liquid inlet hole, and the external threaded tube is connected to the cleaning fluid source.

[0012] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: The sampling tube outer wall cleaning device disclosed in this invention facilitates automated cleaning of the sampling tube outer wall, avoids manual cleaning, improves cleaning efficiency, and solves the problem of cleaning fluid splashing during the cleaning process. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the cleaning device provided in an embodiment of the present invention; Figure 2This is another three-dimensional structural schematic diagram of the cleaning device provided in the embodiment of the present invention; Figure 3 This is a schematic diagram of the assembly structure of the installation component and the flow guiding component provided in an embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of the cleaning device provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the internal channel structure of the installation component provided in an embodiment of the present invention; Figure 6 This is an exploded view of the installation components provided in an embodiment of the present invention.

[0015] In the diagram: mounting component 100, flow guiding component 200, nozzle 300, sampling tube 400, external thread fitting 500, sampling bottle 600; First mounting block 110, second mounting block 120, third mounting block 130, first guide component 210, second guide component 220, accommodating space 101, groove 102, sealing ring 103, sealing plug 104; First channel 111, first recess 112, second recess 113, protrusion 114, first flow hole 115, first connecting hole 116, liquid inlet hole 117, connector 118, first nozzle mounting hole 119; Second channel 121, second flow hole 122, second connection hole 123, second nozzle mounting hole 124; Third channel 131, third flow hole 132, third connection hole 133, third nozzle mounting hole 134; Pipe insertion hole 211, first diameter end 212, second diameter end 213, mounting base 214, flow guiding space 215. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0017] It should be noted that the terms "first" and "second" used in the embodiments of the present invention are used to distinguish between two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of the invention. Subsequent embodiments will not explain this in detail.

[0018] like Figures 1-5As shown, a cleaning device for the outer wall of a sampling tube includes: a mounting assembly 100, a flow guiding assembly 200, and a nozzle 300. The mounting assembly 100 has a receiving space 101, which communicates with openings in the top and bottom walls of the mounting assembly 100. A channel is provided in the side wall of the mounting assembly 100, serving as a flow path for the cleaning fluid in the sampling tube 400. The flow guiding assembly 200 includes: a first flow guiding assembly 210 and a second flow guiding assembly 220. The first flow guiding assembly 210 is disposed on the top wall of the mounting assembly 100 and is used to cover the openings in the top wall of the mounting assembly 100. The second flow guiding assembly 220 is disposed on the bottom wall of the mounting assembly 100 and is used to cover the openings in the bottom wall of the mounting assembly 100. Both the first guide member 210 and the second guide member 220 are provided with tube insertion holes 211, which communicate with the receiving space 101. The tube insertion holes 211 on the first guide member 210 and the second guide member 220 are coaxially arranged. The sampling tube 400 is inserted into the receiving space 101 through the tube insertion hole 211 on the first guide member 210 and exits through the tube insertion hole 211 on the second guide member 220. The nozzle 300 is disposed in the receiving space 101 and has a connecting end and a spraying end, which communicate with each other. The connecting end is connected to the side wall of the mounting assembly 100 and communicates with the channel of the mounting assembly 100, while the spraying end is oriented towards the receiving space 101.

[0019] In the above-described embodiment of the present invention, the sampling tube 400 extracts a chemical sample from the sampling bottle 600. The sampling tube outer wall cleaning device disclosed in this embodiment of the present invention has the sampling tube 400 passing through the first guide member 210, the receiving space 101, and the second guide member 220, with a nozzle 300 disposed in the receiving space 101. Cleaning fluid flows into the nozzle 300 through the channel in the mounting assembly 100 and is sprayed out from the nozzle 300. The cleaning fluid is sprayed onto the section of the sampling tube 400 located in the receiving space 101, flows out from the tube insertion hole 211 of the second guide member 220, and flows downwards along the outer wall of the sampling tube 400, thereby achieving the purpose of cleaning the outer wall of the sampling tube 400. Figure 1 and Figure 2 The arrow on the sampling tube 400 indicates the direction of the cleaning fluid flow.

[0020] As described above, the first guide member 210 covers the opening on the top wall of the mounting assembly 100, thus blocking splashed cleaning fluid. The second guide member 220 covers the opening on the bottom wall of the mounting assembly 100, guiding the cleaning fluid to the tube insertion hole 211 of the second guide member 220, allowing the cleaning fluid to flow along the outer wall of the sampling tube 400. The diameter of the tube insertion hole 211 is slightly larger than the outer diameter of the sampling tube 400, so that the tube insertion hole 211 can fix the sampling tube 400 without obstructing the flow of cleaning fluid. For example, the diameter of the tube insertion hole 211 can be 1-3 mm larger than the outer diameter of the sampling tube 400.

[0021] As described above, the mounting assembly 100 may have one receiving space 101, or at least two receiving spaces 101. Each receiving space 101 is provided with a flow guiding assembly 200. This allows the cleaning device to clean multiple sampling tubes 400 simultaneously. For example, as... Figures 1-3 As shown, the mounting assembly 100 includes four receiving spaces 101, which can simultaneously clean four sampling tubes 400.

[0022] As described above, the first flow guiding component 210 and the second flow guiding component 220 can be sheet metal. Or, as... Figure 4 As shown, the first flow guiding component 210 and the second flow guiding component 220 have a flow guiding space 215. The first flow guiding component 210 and the second flow guiding component 220 are disposed opposite to each other on the top wall and bottom wall of the mounting component 100, and the flow guiding space 215 communicates with the receiving space 101. Exemplarily, the first flow guiding component 210 and the second flow guiding component 220 may be a tubular structure with a frustum-shaped flow guiding space 215.

[0023] The cleaning device disclosed in the above embodiments of the present invention may include one nozzle 300, two symmetrically arranged nozzles 300, or multiple sets of symmetrically arranged nozzles 300. The axes of symmetry of the multiple sets of symmetrically arranged nozzles 300 have an included angle, for example, as... Figure 2 As shown, two sets of symmetrically arranged nozzles 300 are provided in the accommodating space 101, and the axes of symmetry of the two sets of symmetrically arranged nozzles 300 are perpendicular. Furthermore, the sampling tube 400 can be rotated by providing a rotating component so that the cleaning device can thoroughly clean the outer wall of the sampling tube 400.

[0024] In one embodiment, the mounting assembly 100 includes two opposing first mounting blocks 110 and two opposing second mounting blocks 120. The first mounting blocks 110 and the second mounting blocks 120 are connected to form a receiving space 101 of the mounting assembly 100.

[0025] As another example, the first mounting block 110 has a first channel 111, and a nozzle 300 is mounted on the first mounting block 110, communicating with the first channel 111. Thus, cleaning fluid can be sprayed onto the outer wall of the sampling tube 400 from two opposite directions.

[0026] As another example, the second mounting block 120 has a second channel 121, and a nozzle 300 is mounted on the second mounting block 120, communicating with the second channel 121. Thus, cleaning fluid can be sprayed onto the outer wall of the sampling tube 400 from two opposing directions.

[0027] As another example, the first mounting block 110 has a first channel 111, and the second mounting block 120 has a second channel 121, with the first channel 111 and the second channel 121 communicating with each other. A nozzle 300 is provided on the side wall of the first mounting block 110 near the receiving space 101, and the nozzle 300 communicates with the first channel 111. Similarly, a nozzle 300 is provided on the side wall of the second mounting block 120 near the receiving space 101, and the nozzle 300 communicates with the second channel 121. Thus, cleaning fluid can be sprayed onto the outer wall of the sampling tube 400 from two opposing directions, resulting in a more thorough cleaning of the sampling tube 400.

[0028] In one embodiment, the mounting assembly 100 further includes a third mounting block 130, at least one third mounting block 130 being disposed between two opposing second mounting blocks 120, the third mounting block 130 being parallel to the second mounting blocks 120, and the third mounting block 130 being connected to the first mounting block 110. The first mounting block 110, the second mounting block 120, and the third mounting block 130 enclose at least two receiving spaces 101. For example, as... Figures 1-6 As shown, the cleaning device includes two opposing first mounting blocks 110 and two opposing second mounting blocks 120. The first mounting blocks 110 and second mounting blocks 120 are connected to form a cuboid space. A third mounting block 130 is connected to the first mounting block 110 and disposed between the two second mounting blocks 120. Exemplarily, the cleaning device includes three third mounting blocks 130, and the first mounting blocks 110, second mounting blocks 120, and third mounting blocks 130 form four receiving spaces 101.

[0029] Furthermore, such as Figure 5 As shown, the first mounting block 110 has a first channel 111, the second mounting block 120 has a second channel 121, and the third mounting block 130 has a third channel 131. The second channel 121 and the third channel 131 are both connected to the first channel 111, forming channels of the mounting assembly 100.

[0030] Nozzles 300 are provided on the sidewalls of the first mounting block 110, the second mounting block 120, and the third mounting block 130 near the receiving space 101. The nozzle 300 on the first mounting block 110 communicates with the first channel 111, the nozzle 300 on the second mounting block 120 communicates with the second channel 121, and the nozzle 300 on the third mounting block 130 communicates with the third channel 131. Thus, cleaning fluid can enter the nozzle 300 on the first mounting block 110 through the first channel 111, enter the nozzle 300 on the second mounting block 120 through the second channel 121, and enter the nozzle 300 on the third mounting block 130 through the third channel 131, spraying it towards the sampling tube 400 from four directions.

[0031] In one embodiment, such as Figure 6As shown, along the length of the first mounting block 110, two first recesses 112 are provided on the side wall of the first mounting block 110 near the receiving space 101, and a protrusion 114 is provided between the two recesses. The second mounting block 120 is connected to the first mounting block 110 at the first recesses 112, and a nozzle 300 is provided on the protrusion 114.

[0032] In one embodiment, along the length of the first mounting block 110, two first recesses 112 are provided on the side wall of the first mounting block 110 near the receiving space 101, and at least one second recess 113 is provided between the two first recesses 112. A protrusion 114 is provided between the first recesses 112 and the second recesses 113, and also between the two second recesses 113. A third mounting block 130 is connected to the first mounting block 110 at the second recesses 113, and a nozzle 300 is provided on the protrusion 114. In the above embodiments, the first recess 112 can limit the second mounting block 120, and the second recess 113 can limit the third mounting block 130, making the installation of the second mounting block 120, the third mounting block 130 and the first mounting block 110 more secure. At the same time, it is also beneficial to the sealing of the first channel 111 in the first mounting block 110 and the second channel 121 in the first mounting block 110 and the third channel 131 in the third mounting block 130.

[0033] Furthermore, such as Figure 6 As shown in the above embodiment, in the top-to-bottom direction, the protrusion 114 extends radially inward toward the receiving space 101, and the sidewalls of the second mounting block 120 and the third mounting block 130, on which the nozzles 300 are located, extend radially inward toward the receiving space 101. The inclined protrusion 114, the inclined sidewalls of the first mounting block 110 and the third mounting block 130 facilitate the orientation of the nozzles 300 mounted thereon toward the second guide member 220, thereby concentrating the spray direction of the nozzles 300 on the first mounting block 110, the second mounting block 120 and the third mounting block 130, and reducing upward splashing of cleaning fluid.

[0034] Furthermore, such as Figure 6As shown, in one embodiment, both the first recess 112 and the second recess 113 have a first flow hole 115 and a first connecting hole 116. The first connecting hole 116 is symmetrically arranged radially outside the first flow hole 115, and the first flow hole 115 communicates with the first channel 111. The end face of the second mounting block 120 connected to the first mounting block 110 has a second flow hole 122 corresponding to the position of the first flow hole 115 in the first recess 112, and a second connecting hole 123 corresponding to the position of the first connecting hole 116 in the first recess 112. The end face of the third mounting block 130 connected to the first mounting block 110 has a third flow hole 132 corresponding to the position of the first flow hole 115 in the second recess 113, and a third connecting hole 133 corresponding to the position of the first connecting hole 116 in the second recess 113.

[0035] As described above, the first connecting hole 116, the second connecting hole 123, and the third connecting hole 133 can be threaded holes. The first mounting block 110 can be connected to the second mounting block 120 and the third mounting block 130 through the engagement of a screw and the threaded hole. The first channel 111 and the second channel 121 can be connected through the first flow hole 115 and the second flow hole 122, and the first channel 111 and the third channel 131 can be connected through the first flow hole 115 and the third flow hole 132.

[0036] Furthermore, grooves 102 are provided on the first recess 112 and the second recess 113, and a first flow hole 115 is disposed in the grooves 102 on the first recess 112 and the second recess 113. A groove 102 is provided on the end face of the second mounting block 120, and a second flow hole 122 is disposed in the groove 102 on the end face of the second mounting block 120. A groove 102 is provided on the end face of the third mounting block 130, and a third flow hole 132 is disposed in the groove 102 on the end face of the third mounting block 130. A sealing ring 103 is provided in the grooves 102 to prevent liquid leakage at the connection between the first mounting block 110 and the second mounting block 120 and the third mounting block 130.

[0037] In one embodiment, such as Figure 6As shown, the protrusion 114 has a first nozzle mounting hole 119, in which a nozzle 300 is disposed, and the first nozzle mounting hole 119 communicates with the first channel 111. The second mounting block 120 has a second nozzle mounting hole 124 on its side wall near the receiving space 101, in which a nozzle 300 is disposed, and the second nozzle mounting hole 124 communicates with the second channel 121. The third mounting block 130 has third nozzle mounting holes 134 on its two side walls, in which a nozzle 300 is disposed, and the third nozzle mounting hole 134 communicates with the second channel 121. The first nozzle mounting hole 119, the second nozzle mounting hole 124, and the third nozzle mounting hole 134 can be threaded holes. The connecting end of the nozzle 300 is threaded, and the nozzle 300 is threadedly connected to the first mounting block 110, the second mounting block 120, and the third mounting block 130.

[0038] In one embodiment, such as Figure 6 As shown, the first mounting block 110 has through holes on both ends that communicate with the first channel 111, allowing multiple first mounting blocks 110 to connect, extending the length of the cleaning device and increasing the number of cleaning sampling tubes 400. When not in use, the through holes can be blocked by a sealing plug 104 to prevent leakage.

[0039] In one embodiment, such as Figure 2 and Figure 4 As shown, both the first guide member 210 and the second guide member 220 have a first diameter end 212 and a second diameter end 213, which are connected by sidewalls to form a variable diameter tube structure. The diameter of the first diameter end 212 is smaller than the diameter of the second diameter end 213. The first diameter end 212 serves as a tube insertion hole 211, and the second diameter end 213 is connected to the mounting assembly 100. Further, an annular mounting seat 214 is connected to the second diameter end 213, and the mounting seat 214 is connected to the mounting assembly 100. As described above, the first guide member 210 is configured as a variable diameter tube structure, which is beneficial for blocking the upward splashing cleaning fluid. The second guide member 220 is configured as a variable diameter tube structure, which is beneficial for concentrating the cleaning fluid onto the sampling tube 400, allowing the cleaning fluid to flow along the outer wall of the sampling tube 400 and clean the outer wall of the sampling tube 400.

[0040] In one embodiment, further as Figure 4As shown, the diameter of the second diameter end 213 of the first guide member 210 is the same as the diameter of the opening on the top wall of the mounting assembly 100, and the diameter of the second diameter end 213 of the second guide member 220 is larger than the diameter of the opening on the bottom wall of the mounting assembly 100. The fact that the diameter of the second diameter end 213 of the second guide member 220 is larger than the diameter of the opening on the bottom wall of the mounting assembly 100 facilitates the flow of cleaning fluid from the receiving space 101 into the guiding space 215 of the second guide member 220.

[0041] In one embodiment, such as Figure 1 , Figure 2 and Figure 6 As shown, the top wall of the mounting assembly 100 is provided with a liquid inlet hole 117, which communicates with the channel of the mounting assembly 100. An external threaded tube 500 is provided at the liquid inlet hole 117, which is connected to the cleaning fluid source. For example, the top wall of the first mounting block 110 is provided with a liquid inlet hole 117, which communicates with the first channel 111 inside the first mounting block 110. The cleaning fluid enters the first channel 111 through the liquid inlet hole 117, then enters the second channel 121 of the second mounting block 120 and the third channel 131 of the third mounting block 130, and is subsequently sprayed from the nozzle 300 in the receiving space 101 onto the sampling tube 400. Further, a tube connector 118 can be provided on the liquid inlet hole 117, and a valve body can be provided on the connector 118 to control the entry of the cleaning fluid source into the cleaning device. In this embodiment of the invention, the cleaning fluid flows out from the cleaning fluid source into the external threaded tube 500, enters the channel of the mounting assembly 100 through the external threaded tube 500, and is then sprayed from the nozzle 300 onto the sampling tube 400 inserted in the cleaning device to clean the outer wall of the sampling tube 400.

[0042] The technical solutions provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

[0043] All of the above-mentioned optional technical solutions can be combined in any way to form optional embodiments of the present invention, and will not be described in detail here.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cleaning device for the outer wall of a sampling tube, characterized in that, include: The mounting component has a receiving space, which has openings on both the top and bottom walls of the mounting component, and a channel is provided in the side wall of the mounting component. A flow guiding assembly includes: a first flow guiding member and a second flow guiding member. The first flow guiding member is connected to the top wall of the mounting assembly and covers the opening on the top wall of the mounting assembly. The second flow guiding member is connected to the bottom wall of the mounting assembly and covers the opening on the bottom wall of the mounting assembly. Both the first flow guiding member and the second flow guiding member have tube insertion holes. The tube insertion holes communicate with the receiving space. The tube insertion holes on the first flow guiding member and the tube insertion holes on the second flow guiding member are coaxially arranged so that the sampling tube passes through the tube insertion holes through the first flow guiding member, the second flow guiding member, and the receiving space. The nozzle includes a connecting end and a spraying end disposed opposite to the connecting end, the spraying end communicating with the connecting end, the nozzle being disposed in the receiving space, the connecting end being connected to the side wall of the mounting assembly, the connecting end communicating with the channel of the mounting assembly, and the spraying end being disposed toward the receiving space so that the flushing fluid is sprayed onto the outer wall of the sampling tube.

2. The cleaning device for the outer wall of the sampling tube as described in claim 1, characterized in that, The mounting component includes two first mounting blocks and two second mounting blocks arranged opposite each other. The first mounting blocks and the second mounting blocks enclose the receiving space. The first mounting blocks have a first channel, and the second mounting blocks have a second channel. The first channel and the second channel communicate with each other to form the channel of the mounting component.

3. The cleaning device for the outer wall of the sampling tube as described in claim 2, characterized in that, The installation components also include: The third mounting block is disposed between two opposing second mounting blocks. The first mounting block, the second mounting block, and the third mounting block enclose at least two receiving spaces. The third mounting block has a third channel, and the first channel, the second channel, and the third channel form the channel of the mounting component.

4. The cleaning device for the outer wall of the sampling tube as described in claim 3, characterized in that, The first mounting block has the following on its side wall near the receiving space: A first recessed portion is connected to the second mounting block, and the shape of the first recessed portion is adapted to the end face shape of the second mounting block. The second recess is disposed between the two first recesses and is connected to the third mounting block. The shape of the second recess is adapted to the end face shape of the third mounting block. A protrusion is disposed between the first recess and the second recess, and / or the protrusion is disposed between two second recesses, and the protrusion is connected to the nozzle.

5. The cleaning device for the outer wall of the sampling tube as described in claim 4, characterized in that, In the top-to-bottom direction, the protrusion extends obliquely toward the radially inward side of the receiving space, and the sidewall of the second mounting block with the nozzle and the sidewall of the third mounting block with the nozzle both extend obliquely toward the radially inward side of the receiving space.

6. The cleaning device for the outer wall of the sampling tube as described in claim 4, characterized in that, Both the first recess and the second recess have: a first flow hole and a first connecting hole, the first connecting hole being symmetrically arranged on the radial outer side of the first flow hole, and the first flow hole communicating with the first channel; The end face of the second mounting block connected to the first mounting block has a second flow hole corresponding to the position of the first flow hole in the first recess, and a second connection hole corresponding to the position of the first connection hole in the first recess. The second mounting block and the first mounting block are positioned and connected through the first connection hole and the second connection hole. The first channel and the second channel are connected through the first flow hole and the second flow hole. The end face of the third mounting block connected to the first mounting block has a third flow hole corresponding to the position of the first flow hole in the second recess, and a third connection hole corresponding to the position of the first connection hole in the second recess. The second mounting block and the third mounting block are positioned and connected through the first connection hole and the third connection hole. The first channel and the third channel are connected through the first flow hole and the third flow hole.

7. The cleaning device for the outer wall of the sampling tube as described in claim 6, characterized in that, The first flow hole, the second flow hole, and the third flow hole are all disposed in the groove, and a sealing ring is disposed in the groove.

8. The cleaning device for the outer wall of the sampling tube as described in claim 4, characterized in that, The protrusion is provided with a first nozzle mounting hole, the nozzle is disposed in the first nozzle mounting hole, and the first nozzle mounting hole is in communication with the first channel; The second mounting block has a second nozzle mounting hole on its side wall near the receiving space. The nozzle is disposed in the second nozzle mounting hole, and the second nozzle mounting hole communicates with the second channel. The third mounting block has a third nozzle mounting hole on its two side walls. The nozzle is disposed in the third nozzle mounting hole and the third nozzle mounting hole is connected to the third channel.

9. The cleaning device for the outer wall of the sampling tube as described in claim 1, characterized in that, Both the first guide and the second guide are variable diameter pipe structures, having a first diameter end and a second diameter end. The diameter of the first diameter end is smaller than the diameter of the second diameter end. The first diameter end forms the pipe insertion hole, and the second diameter end is connected to the mounting assembly.

10. The cleaning device for the outer wall of the sampling tube as described in claim 9, characterized in that, The diameter of the second diameter end of the first flow guide is the same as the diameter of the opening on the top wall of the mounting assembly, and the diameter of the second diameter end of the second flow guide is larger than the diameter of the opening on the bottom wall of the mounting assembly.

11. The cleaning device for the outer wall of the sampling tube as described in claim 1, characterized in that, The top wall of the mounting assembly is provided with a liquid inlet hole, which is connected to the channel of the mounting assembly. An external threaded tube is provided at the liquid inlet hole, and the external threaded tube is connected to the cleaning fluid source.

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